Ford 427W 600HP Fuel Injected Airboat Engine

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The 427W 600HP engine package is ideal for the airboater that is looking to replace his current small block Ford engine. The 427 features a 4.000 stroke crankshaft where the 351w has a 3.500 stroke. By adding the .500 stroke to the classic 351W Ford engine it creates unbelievable low to mid range torque. When you are building or looking at re-powering your airboat low to mid range torque is what you want. Running on dry ground takes a lot of torque and power to make it happen (We have done just that). We here at Proformance Unlimited have tested many different engine combinations perfecting the perfect balance of torque and power to allow you to get the most out of your airboating experience. Designing this type of extreme duty engine goes well past just making good power and torque. We have developed several combinations that are extremely durable and will allow the user to enjoy his or her airboating experience with limited down time and maintenance.





Bore & Stroke

4.125 - 4.000

  • Aluminum 351w Big Bore Performance Block 1pc Rear Main Seal
  • Honed with deck plate
  • Mains have been aline honed
  • Block has been decked
  • Cam bearings installed
  • Eagle 4340 forged steel stroker crankshaft
  • Eagle H-beam connecting rods
  • SRP or Mahle forged pistons
  • Performance rod and main bearing (Clevite)
  • Hastings performance rings
  • The complete rotating assembly will be balanced
  • Comp Cams custom ground hydraulic roller performance camshaft
  • Three piece true double roller timing set
  • Roller lifters
  • Aluminum performance cylinder heads (AFR)
  • Performance valve springs and retainers
  • Screw in studs and hardened guide plates
  • ARP head bolts
  • Manley chrome moly push rods
  • Performance Roller Rockers
  • Melling oil pump
  • Melling oil pick up
  • Rear sump 8 qt. oil pan
  • Timing cover with scale
  • Engine will be assembled with all new bolts
  • Fel-Pro performance gaskets
  • Edelbrock performance intake manifold
  • Holley Terminator fuel injection system
  • MSD Performance distributor
  • Autolite spark plugs
  • Cobra valve covers with baffles
  • Professional Products performance balancer
  • Engine will be dyno tested
  • 2 Year 250 Hour Marine Warranty

March Performance Pulleys

Pulley Systems

Alternator Only *

Alternator Only *

This system includes the following items:

  • 105 Amp alternator chrome
  • Alternator pulley
  • Crankshaft pulley
  • Water pump pulley
  • Aluminum bracket with fan & nose cover
  • Belt tensioning bar
  • Serpentine belt
  • Installed on your engine

Add $750

Does this engine look like a good fit?